On the French Riviera between Nice and the Italian border, Monaco is a tiny, independent principality that’s smaller than a single square mile. The country gained international fame in 1956 when reigning Prince Rainier III married American actress—and Hollywood royalty—Grace Kelly, cementing its status as a playground for the jet set.
Today, it’s still world-famous as a capital for pomp and pampering. Within its postage-stamp borders, visitors can find: nine Michelin-starred restaurants (and 14...